1Function: alginv
2Section: algebras
3C-Name: alginv
4Prototype: GG
5Help: alginv(al,x): element 1/x in al.
6Doc: Given an element $x$ in \var{al}, computes its inverse $x^{-1}$ in the
7 algebra \var{al}. Assumes that $x$ is invertible.
8 \bprog
9 ? A = alginit(nfinit(y), [-1,-1]);
10 ? alginv(A,[1,1,0,0]~)
11 %2 = [1/2, 1/2, 0, 0]~
12 @eprog
13
14 Also accepts matrices with coefficients in \var{al}.
15